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Diffstat (limited to 'fs/smb/client/smb1ops.c')
-rw-r--r--fs/smb/client/smb1ops.c80
1 files changed, 8 insertions, 72 deletions
diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c
index 64e25233e85d..a9eaba8083b0 100644
--- a/fs/smb/client/smb1ops.c
+++ b/fs/smb/client/smb1ops.c
@@ -1041,15 +1041,7 @@ cifs_make_node(unsigned int xid, struct inode *inode,
{
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct inode *newinode = NULL;
- int rc = -EPERM;
- struct cifs_open_info_data buf = {};
- struct cifs_io_parms io_parms;
- __u32 oplock = 0;
- struct cifs_fid fid;
- struct cifs_open_parms oparms;
- unsigned int bytes_written;
- struct win_dev *pdev;
- struct kvec iov[2];
+ int rc;
if (tcon->unix_ext) {
/*
@@ -1083,74 +1075,18 @@ cifs_make_node(unsigned int xid, struct inode *inode,
d_instantiate(dentry, newinode);
return rc;
}
-
/*
- * SMB1 SFU emulation: should work with all servers, but only
- * support block and char device (no socket & fifo)
+ * Check if mounted with mount parm 'sfu' mount parm.
+ * SFU emulation should work with all servers, but only
+ * supports block and char device (no socket & fifo),
+ * and was used by default in earlier versions of Windows
*/
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL))
- return rc;
-
- if (!S_ISCHR(mode) && !S_ISBLK(mode))
- return rc;
-
- cifs_dbg(FYI, "sfu compat create special file\n");
-
- oparms = (struct cifs_open_parms) {
- .tcon = tcon,
- .cifs_sb = cifs_sb,
- .desired_access = GENERIC_WRITE,
- .create_options = cifs_create_options(cifs_sb, CREATE_NOT_DIR |
- CREATE_OPTION_SPECIAL),
- .disposition = FILE_CREATE,
- .path = full_path,
- .fid = &fid,
- };
-
- if (tcon->ses->server->oplocks)
- oplock = REQ_OPLOCK;
- else
- oplock = 0;
- rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, &buf);
- if (rc)
- return rc;
-
- /*
- * BB Do not bother to decode buf since no local inode yet to put
- * timestamps in, but we can reuse it safely.
- */
-
- pdev = (struct win_dev *)&buf.fi;
- io_parms.pid = current->tgid;
- io_parms.tcon = tcon;
- io_parms.offset = 0;
- io_parms.length = sizeof(struct win_dev);
- iov[1].iov_base = &buf.fi;
- iov[1].iov_len = sizeof(struct win_dev);
- if (S_ISCHR(mode)) {
- memcpy(pdev->type, "IntxCHR", 8);
- pdev->major = cpu_to_le64(MAJOR(dev));
- pdev->minor = cpu_to_le64(MINOR(dev));
- rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
- &bytes_written, iov, 1);
- } else if (S_ISBLK(mode)) {
- memcpy(pdev->type, "IntxBLK", 8);
- pdev->major = cpu_to_le64(MAJOR(dev));
- pdev->minor = cpu_to_le64(MINOR(dev));
- rc = tcon->ses->server->ops->sync_write(xid, &fid, &io_parms,
- &bytes_written, iov, 1);
- }
- tcon->ses->server->ops->close(xid, tcon, &fid);
- d_drop(dentry);
-
- /* FIXME: add code here to set EAs */
-
- cifs_free_open_info(&buf);
- return rc;
+ return -EPERM;
+ return cifs_sfu_make_node(xid, inode, dentry, tcon,
+ full_path, mode, dev);
}
-
-
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,